[tor-relays] log: Error binding network socket to 203.217.31.172: Cannot assign requested address

From here:

Mar 27 16:50:35.000 [warn] Error binding network socket to 203.217.31.172: Cannot assign requested address

to here: Mar 27 23:56:46.000 [warn] Error binding network socket to 203.217.31.172: Cannot assign requested address

I got 828 of those messages.

Why no socket number, or more information in the logs to debug this? Although it only happened in that time frame above - not happening any more.

TIA Zenaan